{"product_id":"icp-2-pole-contactor-for-rgs121hdbb0aaaa-30a-40a-24v-coil-ships-today","title":"ICP 2-Pole Contactor for RGS121HDBB0AAAA — 30A\/40A 24V Coil | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is the OEM 2-pole definite purpose contactor for the ICP \/ Tempstar \/ Heil RGS121HDBB0AAAA gas furnace and condensing unit. The contactor is the electrically operated switch that energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. A 24V signal from the control board pulls in the coil, closing the high-voltage line contacts. Available in 30A (OEM 1178074) and 40A (OEM 1178211) ratings, both with a 24-volt coil. Pitted, welded, or chattering contacts are one of the most common reasons a system hums but won't start, or runs continuously because the contacts have fused closed.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1178074 (30A), 1178211 (40A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eDefinite Purpose Contactor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP \/ Tempstar \/ Heil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoles\u003c\/td\u003e\n\u003ctd\u003e2-Pole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Rating\u003c\/td\u003e\n\u003ctd\u003e30A \/ 40A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eEngineered for the ICP\/Tempstar\/Heil RGS121HDBB0AAAA. Definite purpose contactors are widely interchangeable; confirm pole count, contact amperage, and 24V coil voltage against your existing part before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the breaker and disconnect, then verify zero voltage with a multimeter at the contactor line terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the unit's electrical access panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wires and terminal positions before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and remove line, load, and 24V coil wires; unscrew the old contactor from the bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new contactor and reconnect each wire exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm the contactor pulls in on a cooling call and the compressor\/fan start.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSystem hums or buzzes but compressor and fan won't start.\u003c\/li\u003e\n\u003cli\u003eVisibly pitted, burned, or melted contacts.\u003c\/li\u003e\n\u003cli\u003eOutdoor unit runs continuously because contacts are welded closed.\u003c\/li\u003e\n\u003cli\u003eLoud chattering or clicking when the thermostat calls for cooling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"Direct Replacement","offer_id":63027537215859,"sku":"1178074-GEN","price":32.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047939752307,"sku":"1178074","price":42.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-2pole-1178074_0cc48605-1f0d-45b3-827f-a397a3e7094c.jpg?v=1782881564","url":"https:\/\/nationalhvacparts.com\/products\/icp-2-pole-contactor-for-rgs121hdbb0aaaa-30a-40a-24v-coil-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}